EP1250943A1 - Kathetereinführvorrichtung mit Nadelschutz - Google Patents

Kathetereinführvorrichtung mit Nadelschutz Download PDF

Info

Publication number
EP1250943A1
EP1250943A1 EP02008210A EP02008210A EP1250943A1 EP 1250943 A1 EP1250943 A1 EP 1250943A1 EP 02008210 A EP02008210 A EP 02008210A EP 02008210 A EP02008210 A EP 02008210A EP 1250943 A1 EP1250943 A1 EP 1250943A1
Authority
EP
European Patent Office
Prior art keywords
needle
catheter
hub
safety
spring clip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02008210A
Other languages
English (en)
French (fr)
Other versions
EP1250943B1 (de
Inventor
Thomas Menzi
Jürgen Fuchs
Kevin Woehr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B Braun Melsungen AG
Original Assignee
B Braun Melsungen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B Braun Melsungen AG filed Critical B Braun Melsungen AG
Publication of EP1250943A1 publication Critical patent/EP1250943A1/de
Application granted granted Critical
Publication of EP1250943B1 publication Critical patent/EP1250943B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0637—Butterfly or winged devices, e.g. for facilitating handling or for attachment to the skin
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00—Catheters; Hollow probes
    • A61M25/01—Introducing, guiding, advancing, emplacing or holding catheters
    • A61M25/06—Body-piercing guide needles or the like
    • A61M25/0612—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders
    • A61M25/0618—Devices for protecting the needle; Devices to help insertion of the needle, e.g. wings or holders having means for protecting only the distal tip of the needle, e.g. a needle guard
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/178—Syringes
    • A61M5/31—Details
    • A61M5/32—Needles; Details of needles pertaining to their connection with syringe or hub; Accessories for bringing the needle into, or holding the needle on, the body; Devices for protection of needles
    • A61M5/3205—Apparatus for removing or disposing of used needles or syringes, e.g. containers; Means for protection against accidental injuries from used needles
    • A61M5/321—Means for protection against accidental injuries by used needles
    • A61M5/3243—Means for protection against accidental injuries by used needles being axially-extensible, e.g. protective sleeves coaxially slidable on the syringe barrel
    • A61M5/3245—Constructional features thereof, e.g. to improve manipulation or functioning
    • A61M2005/3247—Means to impede repositioning of protection sleeve from needle covering to needle uncovering position
    • A61M2005/325—Means obstructing the needle passage at distal end of a needle protection sleeve

Definitions

  • Safety IV catheters discussed herein generally relate to catheters with safety features and specifically to safety IV catheters with blocking mechanisms for automatically blocking the needle tips as the tips are withdrawn from the catheters to thereby facilitate the safe handling of catheter needles.
  • catheter devices for taking blood samples, for intravenous (IV) drug delivery, and for the introduction or removal of other fluids.
  • IV intravenous
  • catheter device typically involves first inserting a needle and plastic catheter combination into the vein of a patient and then removing the needle to leave only the plastic catheter in the vein. The withdrawn needle is then typically disposed of.
  • needle guards To assist in the disposal process and to help prevent health care workers from becoming injured when coming in contact with an exposed tip of a used needle, needle guards have been developed to block the tip of a needle after it has been withdrawn. Indeed, with potentially fatal infectious diseases, such as Acquired Immune Deficiency Syndrome (AIDS) and hepatitis which can be transmitted through the exchange of body fluids by accidental contact with the needle tip of a used needle, needle stick protection has never been more important.
  • AIDS Acquired Immune Deficiency Syndrome
  • hepatitis which can be transmitted through the exchange of body fluids by accidental contact with the needle tip of a used needle
  • Safety catheter devices generally may be grouped into three basic categories: (1) those which include an activation mechanism to hide the withdrawn needle within a needle shield; (2) those which require placement of a separate needle guard; and (3) those which include a sliding shield which must be manually positioned distally over the used needle.
  • most of these safety catheter devices suffer from some shortcomings. Among other things, some require an extra step beyond the normal insertion and withdrawal steps and/or require additional complicated pieces to ensure that the needle guard and the catheter remain attached during the withdrawal procedure.
  • the first category prior art spring biased needle shield utilizes a slightly expanded portion of the needle tip (such as a protrusion or a crimped surface) to prevent the needle shield from sliding off of the distal end of the needle once the shield has engaged.
  • the needle shield is first frictionally positioned in the catheter body before use or insertion into a patient's vein.
  • the frictionally positioned shield has a tendency to disengage from the catheter body before complete separation of the needle from the catheter. When this occurs, the needle tip is left exposed due to the early separation of the spring shield.
  • a needle shield of this type is either placed directly on the needle tip or is movable from the base of the needle to the tip of the needle along the longitudinal direction of the needle. In the latter embodiment, a user can manually slide the needle shield towards the needle tip to engage the needle shield thereto.
  • these manually activated designs require that the user either slide or apply the needle shield to the tip of the needle by hand, thus significantly raising the risk of unintentional contact with the needle tip.
  • the safety guard is configured to sit in the catheter hub until the needle is withdrawn. Once the needle is withdrawn, the safety guard automatically unlocks from the catheter hub to block the needle tip.
  • This design adds an inherent adverse drag between the needle and the safety guard as the needle is withdrawn. This drag is undesirable because it can create an uneven withdrawal movement.
  • a catheter introducer assembly design that automatically moves the needle spring clip into position to block the needle tip upon detachment of the needle from the catheter body. This action occurs as a direct consequence of the withdrawal of the needle from the catheter bore, without the need for the activation of any additional mechanism to complete the needle withdrawal process.
  • the catheter introducer assembly comprises a needle and a needle hub, a catheter and a catheter hub and a safety spring clip assembly.
  • the needle has an elongated shaft which defines a longitudinal axis.
  • the needle also includes a needle tip and has a proximal end secured to the needle hub by conventional means.
  • the needle further comprises a distal end which is proximate the needle tip and has a needle stop located between the proximal and distal ends.
  • the needle stop serves as a limiting feature to limit the movement of the safety spring clip when the safety spring clip comes in contact therewith.
  • the catheter is fixedly attached to the catheter hub by conventional means and is slideably mounted over a substantial portion of the needle.
  • the safety spring clip assembly comprises a needle blocking mechanism for blocking the needle tip and a restraining mechanism for preventing the safety spring clip from separating from the needle.
  • the safety spring clip is slideably mounted onto the needle and generally sits between the catheter hub and the needle hub and, in an exemplary embodiment, is removably secured to both hubs.
  • the safety spring clip is configured to slideably ride the needle shaft and has a sliding range that is limited on one side by the needle stop and on the other side by the needle hub.
  • the safety catheter introducer unit comprises a catheter hub having an internal passage and a catheter mounted thereto, the catheter hub further having a proximal end and an external surface.
  • Another component is a needle hub which has a needle hub distal end and a needle hub proximal end, and a needle defining a longitudinal axis and having a needle distal end, a needle proximal end.
  • the needle also has a needle shaft, a needle tip at the needle distal end and a needle opening at the needle proximal end.
  • the needle hub is arranged such that the needle extends out of the distal end of the needle hub and into the catheter.
  • the needle clip interacts with the other components as follows: the needle clip is disposed about the needle and having a first portion between the proximal end of the catheter hub and the distal end of the needle hub and having a second portion that either engages the external surface of the proximal end of the catheter hub or the needle shaft, the needle tip safety guard further having a needle opening therein through which the needle is in sliding communication.
  • the needle opening is configured to engage the needle stop and prevent the needle clip from completely separating from the needle.
  • the safety catheter assembly should be practiced with the needle hub further comprising a shroud.
  • the invention also includes a method for utilizing the catheter introducer.
  • the method comprising utilizing the catheter introducer assembly as described above to first position and introduce the needle and catheter into a patient and then to withdraw the needle from the catheter while automatically blocking the withdrawn needle tip from accidental contact therewith.
  • the catheter introducer assembly 10 shown therein comprises a needle assembly 11 (FIG. 1a), which includes an introducing needle 12 mounted to a needle hub 14 in a conventional manner, and a catheter body 15 (FIG. 1b), which includes a flexible tubular catheter 16 mounted to a plastic catheter hub 18 also in a conventional manner (FIG. 1b).
  • the catheter introducer assembly 10 further comprises a safety spring clip or a needle clip 20 which is slideably mounted to the needle 12 and removably secured within the needle hub 14 at the holding chamber or bore 22 in the distal end of the needle hub 14.
  • the needle 12 further comprises a needle shaft 24, a needle tip 26 at the needle distal end 28 and a needle inlet 30 at the needle proximal end 32, which, in an exemplary embodiment, extends into a flash chamber 34 in the proximal end of the needle hub 14.
  • the needle hub 14 further comprises a pair of diametrically opposed lateral slits 36 located distally at the holding bore 22. The lateral slits 36 permit access for a pair of spring arms to extend out from the holding bore 22 to removably engage the catheter hub, as further discussed below.
  • the needle clip can be thought of as having a first portion or proximal end which sits within the bore 22 and a second portion or distal end which extends out from the bore to engage the catheter hub 18.
  • the catheter introducer assembly has three positions, a pre-ready position (FIG. 1a), a ready position (FIG. 1b), and a withdrawal or fully retracted position (FIG. 1d).
  • the safety spring clip 20 sits within the holding bore 22 with its proximal end 38 in contact with the holding bore proximal end 40.
  • the safety spring clip 20 can slightly frictionally engage the inside diameter of the holding bore 22. As further discussed below, this slight frictional engagement, if employed, should require less force to disengage than the force necessary to separate the safety spring clip 20 from the catheter hub 18.
  • the safety spring clip 20 which comprises a distal end 42, two elongated spring arms 43, 44, two distal end walls 46, and a spring lip 48 on each of the distal end walls or spring fingers 46, is biased in a first position and touches the needle shaft 24 with its two spring lips 48.
  • the needle 12 further comprises a needle stop 50 (which is also commonly referred to as a crimp, a protrusion, or a bulge; herein collectively referred to as a "needle stop”) disposed along the length of the needle 12 between the proximal 32 and the distal 28 ends, and preferably proximate to the distal end 28 of the needle 12.
  • the needle stop 50 has a contour that is different than the contour of the needle 12, which has a uniform outside diameter along the entire shaft 24.
  • the needle stop 50 can comprise a crimped portion formed by crimping the needle with known crimping methods. At the crimped portion 50, the needle shaft's diameter is therefore different from the uniform outside diameter.
  • the needle stop 50 has a shape that extends from the uniform outside shaft diameter.
  • the needle stop has a shape or a dimension that is larger than the uniform outside diameter. As further discussed below, this larger dimension allows the needle stop 50 to engage an aperture or opening in the proximal end of the safety spring clip 20 and to prevent the spring clip 20 from further moving along the shaft 24.
  • the needle safety clip 20 is in contact with both the needle hub 14 and the catheter hub 18.
  • the safety clip proximal end 38 is positioned within the holding bore 22 while its spring arms 43, 44 extend through the lateral slits 36 to releasably engage the exterior surface of the catheter hub proximal end 54 with the spring lips 48 .
  • the needle hub 14 comprises an integrally molded body 62, which as previously discussed, defines an axial cylindrical inner needle passageway or flash chamber 34.
  • the holding bore 22 is coaxial with the flash chamber 34 and has a support wall 64 at the proximal end 40 of the holding bore 22.
  • the spring wall 58 of the safety spring clip 20 is positioned within the holding bore 22 and against the support wall 64.
  • the holding bore 20 can have any suitable design provided that the needle tip guard 20 can be positioned therein.
  • the needle hub 14 has an enclosing wall 66 which defines the holding bore 22 therein.
  • the holding bore 22 has a diameter that is sufficiently larger than the largest dimension of the safety clip proximal end 38 so that the proximal end can be removed therefrom with minimum resistance.
  • the structure is configured to facilitate manipulation of the needle hub 14 between the thumb and finger(s).
  • the needle hub 14 enclosing wall 66 may include a stepped portion or a textured surface to provide better gripping.
  • the needle hub body 62 can be made of a transparent material, such as, for example, a transparent plastic, so that when the needle is successfully inserted into a patient's vein, back flash of blood can be observed running through the needle and into the flash chamber 34.
  • the catheter hub 18 comprises an integrally molded body 67 which defines an axial cylindrical inner catheter passageway 68 having dimensions designed to accept and fixedly attach the catheter 16 therein.
  • Conventional Luer fitting threads 70 can be formed on the proximal end 54 to serve as a connection point for IV supply lines and the like once the catheter insertion process is complete.
  • the Luer fitting 70 also functions as an anchoring point for the spring lips 48 when the cathether assembly is in the ready position.
  • the exterior surface of the catheter hub 18 at the Luer fitting 70 is engaged by the spring fingers 46 of the spring clip 20, and more specifically is removably gripped by the spring lips 48 of the spring clip 20.
  • the safety spring clip 20 can be made from a resilient metal such as stainless steel and, as previously discussed, comprises two elongated spring arms 43, 44 formed by bending the resilient material to form a first set of two hinges 72.
  • the safety spring clip 20 is also bent at the distal end 42 to form a second set of two hinges 74. Assuming that the width of the spring clip is the transverse measurement of the safety spring clip 20 shown in FIG.
  • the width of the upper spring arm 43 and width of the lower spring arm 44 from a position just proximal to the cross-over point 76 to a position just proximal of the second set of two hinges 74 is less than half of the width of the spring 20 when measured at the spring wall 58.
  • the width of the spring arms 43, 44 is such that there is a space between arms at the cross-over point 76 to enable the needle 12 to pass therebetween.
  • the lower spring arm 44 is shown to be shorter than the upper spring arm 43, the reverse arrangement can also provide a functional alternative.
  • the safety spring clip 20 has a relaxed or unbiased position when it is in the position indicated in FIG. 1c. It is understood that the spring clip 20 is slideably mounted over the needle 12 before the creation of the needle stop 50, or before the needle hub 14 is attached.
  • the safety spring clip 20 taken at line A-A of FIG. 1c.
  • the safety spring clip comprises a circular aperture 78 centrally located at the spring wall 58.
  • the aperture 78 has a diameter that is slightly larger than the uniform diameter of the needle 12, but is less than the largest measured width of the needle stop 50.
  • the spring end wall 58 is capable of sliding about the needle shaft 24 from between the needle stop 50 to the needle hub distal end 52.
  • the end wall 58 is prevented from moving distally past the needle stop 50 because the diameter of the aperture 78 is smaller than the width of the needle stop.
  • the aperture 78 of the spring clip 20 can have an oval, a star or other suitable shape.
  • spring clips provided in accordance with the present invention can have a single arm. If a single spring arm is used, such as either spring arm 43 or 44, a sufficient spring force must be incorporated thereto so that as the needle 12 is being withdrawn, the spring clip 20 does not disengage from the catheter hub 18 before the separation of the needle spring clip 20 and the holding bore 22.
  • the catheter hub may optionally comprise a handle and guidance means for guiding the needle 12 and the catheter 16 inside the patient.
  • the catheter hub 18 may also comprise a plug optionally fitted into the proximal end of the hub for guiding the needle 12 within the catheter 16 and catheter hub 18, or alignment means to ensure that the catheter hub and the needle hub are oriented in a certain direction when assembled.
  • a vent filter may also be fitted into the end of either the catheter hub 18 or the needle hub 14.
  • any electronics suitable for using the catheter to measure or send signals to and/or from the patient may also be incorporated into the catheter hub 18.
  • the catheter introducer assembly 10 operates by inserting the catheter introducer assembly in its ready position into a vein of a patient and then withdrawing the needle 12 while leaving the catheter 16 inserted in the vein.
  • the withdrawal of the inserted needle is performed by firmly gripping the catheter hub 18, such as by gripping a pair of wings 56 located thereon, and preventing the catheter hub from moving while at the same time gripping the needle at the needle hub 14 and then withdrawing the needle 12 by pulling or sliding the needle hub 14 proximally to separate the needle from the catheter.
  • the needle clip 20 disengages from the holding bore 22.
  • the needle clip proximal end 38 slides relative to the needle shaft 24 until it contacts the needle stop 50.
  • the aperture or opening 78 located at the spring wall 58 slides relative to the uniform outer diameter of the shaft 24 until the opening 78 contacts the needle stop 50.
  • the opening 78 is smaller in dimension than the needle stop 50. Therefore, at this point, the needle clip 20 is prevented from further sliding distally relative to the needle shaft 24 by the engagement of the needle stop 50 with the opening 78.
  • any additional pulling or application of withdrawal force causes the needle clip 20 to deflect about the elongated spring arms 43, 44 and the front hinges 60, which causes the spring lips 48 to ride over the Luer fitting 70 at the proximal end 54 of the catheter hub 18.
  • the spring arms 43, 44 resiliently snap together into their first or relaxed position to thereby cause the transverse walls 46 to close over and block the needle tip 26 (FIG. 1d). In this blocked position, a user or an administrator is guarded against accidentally contacting the needle tip.
  • the needle stop 50 comprising a crimp is preferred due to its simple and inexpensive nature, the needle stop can be formed with any shape suitable to prevent the needle 12 from being completely dislodged from the needle clip 20.
  • the needle stop 50 can be formed by other techniques rather than by crimping, for example, by electroetching material above and below the needle stop area to reduce the diameter of the remainder of the needle 12 or by grinding the needle 12 to a desired configuration. Either technique provides the needle 12 with an integral construction, which is preferred. Other possible techniques include plating the area selected for enlargement, insert molding a band of polymeric material around the needle 12 or by welding a band of metal around the needle.
  • the needle tip guard 84 or safety spring clip of this embodiment comprises elongated spring arms 86 which extend distally from the needle tip guard end wall 87.
  • the transverse wall portions 88, 90 have generally L-shaped ends and project inwardly toward the longitudinal axis of the needle 12. In this embodiment, as best shown in FIGs.
  • the safety spring clip 84 further comprises a pair of holding arms 92, which, as is further discussed below, are designed to contact both the shroud 96 (located on the needle hub 14) and the catheter hub 18 (FIG. 2b).
  • the spring fingers 88, 90 and the spring arms 86 are in a relaxed or unbiased position as shown in FIG. 2f.
  • the end wall 87 of the safety spring clip 84 has a restraining opening or an aperture 78 disposed therein for the same limiting function as previously discussed for the embodiment described with respect to FIGs. 1a-1e.
  • the opening 78 is sized to allow the needle shaft to slidingly move therethrough and engages the needle stop 50 to stop the spring clip from being pulled distally off of the tip of the needle 12.
  • the spring clip 84 of this embodiment is configured so that when the needle tip 26 moves proximally of the spring fingers 88, 90, the spring arms 86 spring closed to allow the spring fingers 88, 90 to move together to block the needle tip 26.
  • the needle assembly 94 comprises a needle hub 14 and a needle 12 disposed therein.
  • the needle assembly 94 further comprises a modified section that includes the shroud 96 which has a plurality of lateral slits 98 formed therein. However, the number of lateral slits 98 may be reduced or eliminated all together.
  • the catheter body assembly 100 (FIG. 2b) includes a pair of projections 102 which are Luer flanges or lugs which act as anchor points and which are located at the proximal end of the catheter hub 18.
  • the projections 102 interact with the safety spring clip 84 to removably secure the catheter hub 18 to the needle hub 14 in the ready position. More specifically, the projections 102 interact with the engaging portions 104 (FIG. 2e) located on the holding arms 92 to removably secure the catheter hub 18 to the needle hub 14 in the ready position (FIG. 2b).
  • the projections 102 can also connect with conventional connectors such as an IV fitting and the like.
  • An alignment groove may be provided in the shroud 96 to guide the safety spring clip 84 into the shroud 86 so that the needle clip engaging portions 104 (FIG. 2e) match up with the projections 102.
  • the projections 102 may be provided as a ring formed around the exterior surface of the catheter hub at its proximal end. If so, an alignment groove may be omitted because no matter in what orientation the safety spring clip 84 is inserted, the engaging portions 104 will be aligned with the ring.
  • the present embodiment has a pre-ready position (FIG. 2a), a ready position (FIGs. 2b and 2c), and a fully retracted position (FIG. 2g).
  • the catheter introducer assembly of FIGs. 2a-2g operates by first inserting the needle tip 26 and the catheter 16 in the ready position (FIGs. 2b and 2c) into a patient's vein and then withdrawing the needle 12 while leaving the catheter 16 inserted in the vein. As the needle 12 is withdrawn from the patient, the holding arms 92 on the spring clip move distally with respect to the shroud 96.
  • the safety spring clip 84 which still releasably engages the catheter hub projections 102, slides distally with respect to the needle shaft 32 until the needle stop 50 engages the opening 78 in the spring end wall 87.
  • the safety spring clip 84 is prevented from further movement toward the needle tip due to the engagement between the opening 78 and the needle stop 50.
  • the additional pulling force causes the spring clip 84 to begin separating from the catheter hub 18.
  • the holding arms 92 deflect outwardly as they are pulled passed the projections 102 located on the proximal end of the catheter hub 18.
  • the holding arms 92 completely disengage from the projections 102, and the needle tip 26 is drawn distally past the spring fingers 88, 90, the spring arms 86 spring closed into their relaxed position and the spring fingers move together to block the needle tip. This results in the needle tip being blocked by the spring clip 84 as shown in FIG. 2g.
  • FIGs. 3a - 3e Another alternative embodiment of the catheter introducer assembly provided in accordance with the practice of the present invention is shown in FIGs. 3a - 3e.
  • This embodiment includes a shroud 112 that is removably secured to the needle hub and that travels along the needle shaft with the safety spring clip as the spring clip blocks the needle tip.
  • the safety spring clip 110 is similar to the safety spring clip 84 of FIGs. 2d-2f but does not include the holding arms 92.
  • the safety spring clip 110 comprises a restraining opening 78 (FIG. 3c), a spring wall 58, a pair of spring arms 86, and a pair of spring clip transverse wall portions or spring fingers 88, 90.
  • the removable shroud 112 comprises a covering portion 114, which preferably includes at least a pair of lateral slits 116, a restraining element 118 for engaging the catheter hub 18, an annular bore 120 for removably receiving the needle spring clip 110, and a restraining opening or aperture 115 (FIG. 3d) for receiving and traveling over the needle shaft.
  • the restraining element 118 resembles protrusions formed along the internal circumference of the covering portion 114 that are bisected by lateral slits 116.
  • the catheter introducer assembly 124 in a pre-ready position (FIG. 3a), a ready position (FIG. 3b), and a fully withdrawn or retracted position (FIG. 3e).
  • the needle assembly 126 comprises a needle hub 128 that is similar to the needle hub of FIG. 1a. Accordingly, the needle hub 128 has a flash chamber 34 and receives a needle 12 in a similar fashion as previously discussed.
  • the holding bore 130 has been modified to receive a removable shroud 112 and does not include lateral slits, although lateral slits may be included if desired.
  • the removable shroud 112 can be made, for example by injection molding, from thermoplastic polymer such as polypropylene.
  • the holding bore 130 and the shroud 112 are configured to only slightly frictionally engage. That is, when the needle hub 128 is withdrawn from the catheter, the holding bore 130 and the shroud 112 are configured to disengage from each other before the shroud 112 separates from the catheter hub 18.
  • the removable shroud 112 and the distal end of the needle hub 128 contacts the proximal side of the covering portion 114 at a contact point 132 (FIG. 3a).
  • the removable shroud 112 may include a pin formed to the inside of the covering portion 114 to interact with a slot (not shown) on the catheter hub.
  • the pin and the slot can interact to align the catheter hub with the shroud 112 as the catheter hub 18 is being received by the shroud 112.
  • the catheter hub 14 is essentially the same as previously discussed with respect to the embodiment illustrated in FIG. 1b. Accordingly, the catheter hub 14 comprises a flexible catheter 16, a Luer fitting or threads 70, and a pair of wings 56.
  • the catheter introducer assembly 124 operates by inserting the catheter introducer assembly in its ready position into a patient's vein and then withdrawing the needle 12 while leaving the catheter 16 inserted in the vein.
  • the withdrawal of the inserted needle is performed by firmly gripping the catheter hub 14 and preventing the catheter hub from moving while at the same time gripping the needle hub 128 and then withdrawing the needle by pulling or sliding the needle hub proximally to separate the needle from the catheter.
  • the removable shroud 112 separates from the holding bore 130. This separation is ensured by configuring the frictional engagement between the removable shroud 112 and the holding bore 130 to require less force to separate than the removal force between the restraining element 118 and the Luer fitting 70 at contact point 134 (FIG. 3b). In short, the friction between the inside surface 121 of the holding bore 130 (FIG. 3a) and the outside surface 123 of the shroud 112 should be less than the gripping force between the restraining element 118 and the Luer fitting 70.
  • both the removable shroud 112 and the safety clip 110 move relative to the needle shaft until the needle stop 50 comes into contact with the hole or aperture 78 in the spring wall 58.
  • the contact with the needle stop 50 prevents the removable shroud 112 and the safety spring clip 110 from further movement toward the needle tip of the needle.
  • further pulling force causes the removable shroud 112 to separate from the Luer fitting 70. This separation is assisted by the lateral slits 116 in the covering portion 114, which allows the covering portion 114 to deflect outward as the restraining element 118 travels over the Luer fitting 70.
  • the spring arms 86 resiliently release and spring closed into their relaxed or unbiased state. As was the case in the previous embodiments, this, in turn, causes the spring fingers 88, 90 to come together and block the needle tip 26. In this embodiment, the needle is blocked both by the spring clip as well as the shroud. As readily understood by a person of ordinary skill in the art, although the shroud 112 covers the needle tip 26 at the end of the needle withdrawal operation, it can be moved in the proximal direction off the needle tip if desired.
  • each safety spring clip 20, 84, 110 provided in accordance with the practice of the present invention operates to block the needle tip 26 and be secured to the needle via two separate mechanisms.
  • the spring fingers 46, 88 on the safety spring clip 20, 84, 110 are configured to move over needle tip 26 thereby blocking the needle tip and preventing movement of the spring clip in the proximal direction on the needle.
  • the restraining opening 78 in the end wall 58, 87 is configured to interact with the needle stop 50 so that the spring clip is prevented from being moved off the needle in the distal direction.
  • any suitable safety spring clip design can be utilized in the present invention provided that the spring clip functions to block the needle tip 26 and cannot be accidentally disengaged from the needle tip once engaged.
  • the spring clips 20, 84, 110 disclosed herein are preferably made of an integral construction and from stainless steel or other suitable material with the necessary memory characteristics and spring constant.
  • the needle tip 26 is automatically blocked by the safety spring clip upon complete separation from the catheter hub.
  • the needle tip 26 is therefore passively blocked by the sliding action of the needle out from the implanted catheter.
  • a separate step or action to specifically activate the safety spring clip is not required. Accordingly, the user is not required to perform any operations outside of those currently employed when using conventional needle catheter introducers.
  • the combined actions of the spring clip, spring arms, and the needle stop allows the safety spring clip to automatically engage and block the tip of the needle once the catheter insertion procedure is completed (i.e., once the needle assembly is fully retracted). During operation, there is only minimal frictional engagement or no adverse friction between the safety spring clip, the needle shaft, and the needle hub.
  • FIGs. 4a and 4b there is shown the catheter assembly as described with respect to the embodiment of FIGs. 1a and 1b, but with the Luer fitting 70 modified to include a fitting 133.
  • the fitting 133 comprises a pair of threads 132 which are interrupted by a pair of flats 143. Indented into the flats 143 are a pair of slots 137.
  • the slots 137 are shown aligned perpendicular to the wings 56 in FIG. 4b, which is an end view taken at line D-D of FIG. 4a.
  • the needle hub 14 is attached to the catheter hub 15 by first inserting the needle 12 into the concentric bore of the catheter 16 and then concurrently aligning the spring lips 48 (on the safety spring clip 20) with the slots 137 on the catheter hub and continuing to insert the needle until the proximal end of the catheter hub 15 and the distal end of the needle hub 14 abut one another.
  • the needle hub 14 and the catheter hub 15 can be configured so that they mate in a predetermined fashion.
  • a ready position whereby the wings 56 are aligned with certain stamp or label or design on the needle hub 14.
  • this may be accomplished by configuring the slots 137 and the threads 132 to engage the safety spring clip 20 in such a way that when the catheter hub 15 and the needle hub 14 are rotated to mate, at the end of the rotation the desired appearance / configuration is achieved.
  • the completed rotation is configured so that the spring distal end walls 46 are in a plane substantially parallel to the wings 56 on the catheter hub.
  • a physical stop or a tab may be implemented so that when the tab of the catheter hub comes in contact with the tab on the needle hub, the alignment is achieved.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Pulmonology (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP02008210A 2001-04-18 2002-04-17 Kathetereinführvorrichtung mit Nadelschutz Expired - Lifetime EP1250943B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20106697U 2001-04-18
DE20106697U DE20106697U1 (de) 2001-04-18 2001-04-18 Kathetereinführvorrichtung

Publications (2)

Publication Number Publication Date
EP1250943A1 true EP1250943A1 (de) 2002-10-23
EP1250943B1 EP1250943B1 (de) 2004-09-22

Family

ID=7955890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02008210A Expired - Lifetime EP1250943B1 (de) 2001-04-18 2002-04-17 Kathetereinführvorrichtung mit Nadelschutz

Country Status (7)

Country Link
US (3) US7500965B2 (de)
EP (1) EP1250943B1 (de)
JP (1) JP4237973B2 (de)
AT (1) ATE276785T1 (de)
DE (2) DE20106697U1 (de)
ES (1) ES2227347T3 (de)
MX (1) MXPA02003777A (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003092772A2 (en) * 2002-05-01 2003-11-13 Becton Dickinson And Company Method of making a feature on a cannula
EP1803477A2 (de) * 2004-02-13 2007-07-04 Smiths Medical ASD, Inc. Katheter mit Nadelschutz
US7347838B2 (en) 2004-02-13 2008-03-25 Smiths Medical Asd, Inc. Needle tip protector
WO2012038900A1 (en) 2010-09-21 2012-03-29 Poly Medicure Limited Catheter assembly with improved safety means
US9345862B2 (en) 2011-07-26 2016-05-24 Poly Medicure Limited Needle tip protector assembly for safety IV catheter assembly

Families Citing this family (156)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7125397B2 (en) * 1997-08-20 2006-10-24 B. Braun Melsungen Ag Protective device for an injection needle
US6749588B1 (en) * 1998-04-09 2004-06-15 Becton Dickinson And Company Catheter and introducer needle assembly with needle shield
US8177762B2 (en) 1998-12-07 2012-05-15 C. R. Bard, Inc. Septum including at least one identifiable feature, access ports including same, and related methods
DE20106697U1 (de) * 2001-04-18 2001-10-31 Braun Melsungen Ag Kathetereinführvorrichtung
US8066678B2 (en) 2001-12-17 2011-11-29 Bard Access Systems, Inc. Safety needle with collapsible sheath
JP4457004B2 (ja) * 2002-06-20 2010-04-28 ベクトン・ディキンソン・アンド・カンパニー ニードルシールドを備えたカテーテル及びイントロデューサニードルアッセンブリ
DE20210394U1 (de) 2002-07-04 2002-09-12 Braun Melsungen Ag Kathetereinführvorrichtung
DE20316804U1 (de) * 2003-10-31 2005-03-10 B. Braun Melsungen Ag Kathetervorrichtung
US7513888B2 (en) * 2004-02-17 2009-04-07 Smiths Medical Asd, Inc. Needle guards
US7776016B1 (en) 2004-02-26 2010-08-17 C. R. Bard, Inc. Huber needle safety enclosure
US7850650B2 (en) 2005-07-11 2010-12-14 Covidien Ag Needle safety shield with reset
US7905857B2 (en) 2005-07-11 2011-03-15 Covidien Ag Needle assembly including obturator with safety reset
US7828773B2 (en) 2005-07-11 2010-11-09 Covidien Ag Safety reset key and needle assembly
US7704229B2 (en) * 2005-02-03 2010-04-27 Medtronic Minimed, Inc. Insertion device
US7785302B2 (en) 2005-03-04 2010-08-31 C. R. Bard, Inc. Access port identification systems and methods
US8029482B2 (en) 2005-03-04 2011-10-04 C. R. Bard, Inc. Systems and methods for radiographically identifying an access port
US7947022B2 (en) 2005-03-04 2011-05-24 C. R. Bard, Inc. Access port identification systems and methods
US9474888B2 (en) 2005-03-04 2016-10-25 C. R. Bard, Inc. Implantable access port including a sandwiched radiopaque insert
DE602006019587D1 (de) 2005-04-27 2011-02-24 Bard Inc C R Spritzenpumpesystem zur Injektion von Kontrastmittel in einer intravenösen Leitung
US10307581B2 (en) 2005-04-27 2019-06-04 C. R. Bard, Inc. Reinforced septum for an implantable medical device
EP1874393B1 (de) * 2005-04-27 2017-09-06 C.R.Bard, Inc. Infusionsvorrichtungen
US20060276747A1 (en) 2005-06-06 2006-12-07 Sherwood Services Ag Needle assembly with removable depth stop
WO2007006055A2 (en) 2005-07-06 2007-01-11 Vascular Pathways Inc. Intravenous catheter insertion device and method of use
US7731692B2 (en) * 2005-07-11 2010-06-08 Covidien Ag Device for shielding a sharp tip of a cannula and method of using the same
US8251950B2 (en) * 2005-08-08 2012-08-28 Smiths Medical Asd, Inc. Needle guard clip with heel
US8162881B2 (en) * 2005-08-08 2012-04-24 Smiths Medical Asd, Inc. Needle guard mechanism with angled strut wall
US20070038183A1 (en) * 2005-08-08 2007-02-15 Bialecki Dennis M Needle guard clip with stylus
US7632243B2 (en) 2005-08-08 2009-12-15 Smiths Medical Asd, Inc. Duckbill catheter release mechanism
US8403886B2 (en) 2005-08-08 2013-03-26 Smiths Medical Asd, Inc. Needle guard clip with lip
US7597681B2 (en) 2005-08-08 2009-10-06 Smiths Medical Asd, Inc. Needle guard mechanism with shroud
MX2008005895A (es) * 2005-11-02 2008-10-03 Injectica Ag Aparato para infusion implantable con aguja que puede desplazarse hacia delante o retraerse.
US7654735B2 (en) 2005-11-03 2010-02-02 Covidien Ag Electronic thermometer
JP4921779B2 (ja) * 2005-11-28 2012-04-25 日本コヴィディエン株式会社 留置針
US20070239103A1 (en) * 2005-12-08 2007-10-11 Hardin David M Stylet markings
US9186455B2 (en) * 2006-02-14 2015-11-17 B. Braun Medical Inc. Port access device
US7658725B2 (en) 2006-02-16 2010-02-09 Smiths Medical Asd, Inc. Enclosed needle device with duckbill release mechanism
US20080097330A1 (en) * 2006-07-18 2008-04-24 Smiths Medical Asd, Inc. Catheter insertion device with fluid leakage control
US8308691B2 (en) * 2006-11-03 2012-11-13 B. Braun Melsungen Ag Catheter assembly and components thereof
US8382718B2 (en) * 2006-07-31 2013-02-26 B. Braun Melsungen Ag Needle assembly and components thereof
US8257313B2 (en) * 2006-08-11 2012-09-04 Becton, Dickinson And Company Integrated septum and needle tip shield for a catheter assembly
JP4994775B2 (ja) 2006-10-12 2012-08-08 日本コヴィディエン株式会社 針先保護具
US9265912B2 (en) 2006-11-08 2016-02-23 C. R. Bard, Inc. Indicia informative of characteristics of insertable medical devices
US9642986B2 (en) 2006-11-08 2017-05-09 C. R. Bard, Inc. Resource information key for an insertable medical device
US9220871B2 (en) * 2006-11-22 2015-12-29 Becton, Dickinson And Company Needle shielding pawl structures
US9056188B2 (en) * 2006-11-22 2015-06-16 Becton, Dickinson And Company Needle shielding flag structures
US7744567B2 (en) * 2006-11-22 2010-06-29 Becton, Dickinson And Company Reducing withdrawal force in a safety IV catheter
WO2008092029A2 (en) 2007-01-24 2008-07-31 Access Scientific, Inc. Access device
CA2684630A1 (en) 2007-04-18 2008-10-30 Access Scientific, Inc. Access device
US8597253B2 (en) 2007-04-20 2013-12-03 Bard Access Systems Huber needle with safety sheath
DE602008003791D1 (de) 2007-05-07 2011-01-13 Vascular Pathways Inc Einführung eines intravenösen katheters und blutentnahmevorrichtung und anwendungsverfahren
US7713243B2 (en) * 2007-09-25 2010-05-11 Becton, Dickinson And Company Tip shield for needle stick prevention
US7736340B2 (en) * 2007-09-28 2010-06-15 Becton, Dickinson And Company Catheter insertion device with automatic safety barrier
US8357104B2 (en) 2007-11-01 2013-01-22 Coviden Lp Active stylet safety shield
US9579496B2 (en) 2007-11-07 2017-02-28 C. R. Bard, Inc. Radiopaque and septum-based indicators for a multi-lumen implantable port
CA2705990C (en) 2007-11-21 2016-11-08 Becton, Dickinson And Company Needle safety device
CN101909680B (zh) 2007-11-21 2014-02-05 贝克顿·迪金森公司 安全针防护装置
ATE482738T1 (de) 2007-12-20 2010-10-15 Tyco Healthcare Verschlusskappeanordnung mit gefederter manschette
US20110160671A1 (en) * 2008-03-31 2011-06-30 Terumo Kabushiki Kaisha Indwelling needle assembly
JP5352579B2 (ja) * 2008-03-31 2013-11-27 テルモ株式会社 留置針組立体
US7828774B2 (en) * 2008-05-12 2010-11-09 Harding Weston F Sleeved clip safety
EP2296735A4 (de) * 2008-05-14 2013-05-29 John Stephens Nadelschutzvorrichtung
EP2251056B1 (de) * 2008-05-28 2012-07-11 Poly Medicure Ltd. Kathetereinführvorrichtung
US20100016829A1 (en) * 2008-07-15 2010-01-21 Krumme John F Apparatus and methods for retaining a needle on a medical injector
US8663196B2 (en) * 2008-09-23 2014-03-04 Kassab Kughn Endovascular Devices Llc Endovascular sheath with gradable stiffness device and method
US9782565B2 (en) 2008-10-01 2017-10-10 Covidien Lp Endoscopic ultrasound-guided biliary access system
US11298113B2 (en) 2008-10-01 2022-04-12 Covidien Lp Device for needle biopsy with integrated needle protection
US9186128B2 (en) * 2008-10-01 2015-11-17 Covidien Lp Needle biopsy device
US8968210B2 (en) 2008-10-01 2015-03-03 Covidien LLP Device for needle biopsy with integrated needle protection
US9332973B2 (en) 2008-10-01 2016-05-10 Covidien Lp Needle biopsy device with exchangeable needle and integrated needle protection
CN102271737B (zh) 2008-10-31 2016-02-17 C·R·巴德股份有限公司 用于提供对患者皮下进入的进入端口
US11890443B2 (en) 2008-11-13 2024-02-06 C. R. Bard, Inc. Implantable medical devices including septum-based indicators
US8932271B2 (en) 2008-11-13 2015-01-13 C. R. Bard, Inc. Implantable medical devices including septum-based indicators
US8231582B2 (en) 2008-12-11 2012-07-31 Bard Access Systems, Inc. Device for removing a Huber needle from a patient
EP2216069B1 (de) * 2009-02-06 2014-01-22 VistaMed R & D Ltd. Kathetereinführvorrichtung
US8496623B2 (en) * 2009-03-02 2013-07-30 Becton, Dickinson And Company Bi-directional cannula feature capture mechanism
US9399120B2 (en) 2009-03-02 2016-07-26 Becton, Dickinson And Company Bi-directional cannula feature capture mechanism
US8439877B2 (en) * 2009-03-02 2013-05-14 Becton, Dickinson And Company Bi-directionally engageable cannula crimp feature
US8936575B2 (en) * 2009-03-19 2015-01-20 Becton, Dickinson And Company Cannula-tip shielding mechanism
DE102009020061A1 (de) 2009-05-06 2010-11-11 B. Braun Melsungen Ag Nadelschutzvorrichtung für eine medizinische Hohlnadel
US20100305519A1 (en) * 2009-06-02 2010-12-02 Becton, Dickinson And Company Cannula having an overlapping cannula feature and notch feature
US8728057B2 (en) * 2009-06-04 2014-05-20 Adapta Medical, Inc. Devices and methods for catheter advancement
US8474300B2 (en) * 2009-07-20 2013-07-02 Becton, Dickinson And Company Methods to provide a feature on a needle
US8323249B2 (en) 2009-08-14 2012-12-04 The Regents Of The University Of Michigan Integrated vascular delivery system
DE102009052971A1 (de) * 2009-11-12 2011-05-19 B. Braun Melsungen Ag Kathetereinführvorrichtung
DE102009052962A1 (de) 2009-11-12 2011-06-01 B. Braun Melsungen Ag Kathetereinführvorrichtung
EP2501294B1 (de) 2009-11-17 2018-08-15 C.R. Bard, Inc. Überformter zugangsanschluss mit verankerungs- und identifikationsfunktion
CA2789271A1 (en) 2010-02-08 2011-08-11 Access Scientific, Inc. Access device
DK2536455T3 (da) * 2010-02-18 2014-06-23 Sanofi Aventis Deutschland Fingerbeskyttelse til en injektionsanordning
US10058683B2 (en) * 2010-04-16 2018-08-28 Poly Medicure Limited Catheter apparatus
US10384039B2 (en) 2010-05-14 2019-08-20 C. R. Bard, Inc. Catheter insertion device including top-mounted advancement components
US9950139B2 (en) 2010-05-14 2018-04-24 C. R. Bard, Inc. Catheter placement device including guidewire and catheter control elements
US8932258B2 (en) 2010-05-14 2015-01-13 C. R. Bard, Inc. Catheter placement device and method
US11925779B2 (en) 2010-05-14 2024-03-12 C. R. Bard, Inc. Catheter insertion device including top-mounted advancement components
US9872971B2 (en) 2010-05-14 2018-01-23 C. R. Bard, Inc. Guidewire extension system for a catheter placement device
WO2011146772A1 (en) 2010-05-19 2011-11-24 Tangent Medical Technologies Llc Safety needle system operable with a medical device
WO2011146769A2 (en) 2010-05-19 2011-11-24 Tangent Medical Technologies Llc Integrated vascular delivery system
DE11736297T1 (de) 2010-08-05 2014-03-06 B. Braun Melsungen Ag Nadelsicherheitsvorrichtung und Anordnung
US9375551B2 (en) * 2010-09-01 2016-06-28 Becton, Dickinson And Company Neonatal and pediatric catheter system
CA2806393A1 (en) 2010-09-10 2012-03-15 C.R. Bard, Inc. Systems for isolation of a needle-based infusion set
US10525234B2 (en) 2010-09-10 2020-01-07 C. R. Bard, Inc. Antimicrobial/haemostatic interface pad for placement between percutaneously placed medical device and patient skin
US20140066894A1 (en) 2010-09-10 2014-03-06 C. R. Bard, Inc. Self-Sealing Pad for a Needle-Based Infusion Set
AU2011336340B2 (en) 2010-12-02 2015-06-18 Erskine Medical Llc Needle shield assembly with hub engagement member for needle device
KR101805471B1 (ko) * 2010-12-06 2018-01-10 폴리 메디큐어 리미티드 정맥주사용 카테테르 장치
EP2476451B1 (de) * 2011-01-17 2017-07-19 Poly Medicure Limited Nadelschutz
US8690833B2 (en) 2011-01-31 2014-04-08 Vascular Pathways, Inc. Intravenous catheter and insertion device with reduced blood spatter
EP2678065B1 (de) 2011-02-25 2019-09-11 C.R. Bard Inc. Vorrichtung zum einsetzen medizinischer komponenten mit einer einziehbaren nadel
BR112013021489B1 (pt) 2011-02-25 2021-02-02 B. Braun Melsungen Ag dispositivo médico de lavagem
US8764711B2 (en) 2011-02-28 2014-07-01 Injectimed, Inc. Needle guard
US9238104B2 (en) 2011-02-28 2016-01-19 Injectimed, Inc. Needle guard
CA2828741C (en) * 2011-04-07 2016-06-07 Erskine Medical Llc Needle shielding device
ES2662356T3 (es) 2011-04-27 2018-04-06 Kpr U.S., Llc Conjuntos de catéter IV de seguridad
USD903101S1 (en) 2011-05-13 2020-11-24 C. R. Bard, Inc. Catheter
WO2012159000A2 (en) 2011-05-18 2012-11-22 Solodex Llc Continuous anesthesia nerve conduction apparatus, system and method
US8986283B2 (en) 2011-05-18 2015-03-24 Solo-Dex, Llc Continuous anesthesia nerve conduction apparatus, system and method thereof
US8591467B2 (en) * 2011-07-25 2013-11-26 Covidien Lp Vascular access assembly and safety device
US9440053B2 (en) * 2011-07-26 2016-09-13 Poly Medicure Limited Needle tip protector assembly for safety IV catheter assembly
US8628497B2 (en) 2011-09-26 2014-01-14 Covidien Lp Safety catheter
WO2013048768A1 (en) 2011-09-26 2013-04-04 Covidien Lp Safety iv catheter and needle assembly
WO2013056223A1 (en) 2011-10-14 2013-04-18 Covidien Lp Safety iv catheter assembly
EP2601992A1 (de) 2011-12-08 2013-06-12 Sanofi-Aventis Deutschland GmbH Spritzenträger
BR112015004357A8 (pt) * 2012-08-27 2019-08-13 Injectimed Inc dispositivo de agulha de segurança
CN105102054B (zh) 2013-01-30 2018-04-20 血管通路股份有限公司 用于静脉穿刺和导管放置的系统和方法
US11224724B2 (en) 2013-03-12 2022-01-18 Teleflex Medical Incorporated Catheter insertion device
US10357635B2 (en) 2013-03-12 2019-07-23 Teleflex Medical Incorporated Catheter insertion device
US9717886B2 (en) 2013-03-12 2017-08-01 Teleflex Medical Incorporated Safety clip for a needle
US9566087B2 (en) 2013-03-15 2017-02-14 Access Scientific, Llc Vascular access device
US10500376B2 (en) 2013-06-07 2019-12-10 Becton, Dickinson And Company IV catheter having external needle shield and internal blood control septum
GB2508570C (en) 2013-08-21 2020-02-05 Braun Melsungen Ag Catheter assembly
US10918837B2 (en) * 2013-12-04 2021-02-16 B. Braun Melsungen Ag Safety needle assemblies and related methods
EP3077033A1 (de) * 2013-12-05 2016-10-12 B. Braun Melsungen AG Sicherheitsnadelanordnungen und zugehörige verfahren
EP3102258A4 (de) 2014-02-04 2017-12-27 ICU Medical, Inc. Selbstansaugende systeme und verfahren
US9555221B2 (en) 2014-04-10 2017-01-31 Smiths Medical Asd, Inc. Constant force hold tip protector for a safety catheter
AU2015247343B2 (en) 2014-04-18 2019-08-29 Becton, Dickinson And Company Needle capture safety interlock for catheter
WO2016037127A1 (en) 2014-09-05 2016-03-10 C.R. Bard, Inc. Catheter insertion device including retractable needle
US11511052B2 (en) 2014-11-10 2022-11-29 Becton, Dickinson And Company Safety IV catheter with V-clip interlock and needle tip capture
GB2529270B (en) 2015-01-02 2016-07-27 Becton Dickinson Co Safety intravenous catheter with friction-based retention and disabling feature
US11027099B2 (en) 2015-04-30 2021-06-08 Smiths Medical Asd, Inc. Vascular access device
USD903100S1 (en) 2015-05-01 2020-11-24 C. R. Bard, Inc. Catheter placement device
AU2016265685B2 (en) 2015-05-15 2020-04-09 C.R. Bard, Inc. Catheter placement device including an extensible needle safety component
TW201700117A (zh) 2015-06-03 2017-01-01 賽諾菲阿凡提斯德意志有限公司 用於自動注射器的注射筒托架和組裝方法
TW201705994A (zh) 2015-06-03 2017-02-16 賽諾菲阿凡提斯德意志有限公司 自動注射器及組裝方法
US10525237B2 (en) * 2015-10-28 2020-01-07 Becton, Dickinson And Company Ergonomic IV systems and methods
US11305058B2 (en) 2016-07-27 2022-04-19 Becton, Dickinson And Company Infusion bump capture needle shield
CN112206397B (zh) 2016-09-12 2023-03-21 C·R·巴德股份有限公司 导管插入装置的血液控制
CN108065987B (zh) * 2016-11-14 2023-10-31 江苏威茂医疗科技有限公司 一种安全型套管针
USD828653S1 (en) * 2016-12-14 2018-09-11 Brandon Penland Treatment applicator
CA3054969A1 (en) 2017-03-01 2018-09-07 C.R. Bard, Inc. Catheter insertion device
AU2018251786B2 (en) 2017-04-13 2020-08-27 Teleflex Medical Incorporated Catheter insertion device
US10500375B2 (en) 2017-07-31 2019-12-10 Becton, Dickinson And Company Catheter assembly
US10569059B2 (en) 2018-03-01 2020-02-25 Asspv, Llc Guidewire retention device
EP3762084B1 (de) 2018-03-07 2024-04-24 Bard Access Systems, Inc. Führungsdrahtvorschub- und blutrückflusssysteme für ein system zur insertion eines medizinprodukts
USD921884S1 (en) 2018-07-27 2021-06-08 Bard Access Systems, Inc. Catheter insertion device
US20200338314A1 (en) * 2019-04-23 2020-10-29 Smiths Medical Asd, Inc. Catheter insertion device with improved push tab and tip protector assembly
WO2021034862A1 (en) 2019-08-19 2021-02-25 Becton, Dickinson And Company Midline catheter placement device
US20210323022A1 (en) * 2020-04-20 2021-10-21 Asm Technology Singapore Pte Ltd Fluid-dispensing apparatus
WO2023146794A1 (en) * 2022-01-27 2023-08-03 Smiths Medical Asd, Inc. Intravenous catheter assemblies including closed system catheter assemblies and needle insertion assemblies therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601536A (en) * 1990-04-20 1997-02-11 Becton Dickinson And Company Needle tip cover
US6004294A (en) * 1998-04-09 1999-12-21 Becton, Dickinson And Company Catheter and introducer needle assembly with needle shield
US6117108A (en) * 1997-08-20 2000-09-12 Braun Melsungen Ag Spring clip safety IV catheter

Family Cites Families (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3610240A (en) 1967-06-13 1971-10-05 American Hospital Supply Corp Intravenous catheter apparatus with catheter telescoped inside puncturing cannula
US3904033A (en) 1974-11-08 1975-09-09 Xomox Corp Pick-guard
US4160450A (en) 1977-07-15 1979-07-10 Doherty George O Outside-the-needle catheter device with needle housing
US4795432A (en) 1987-02-19 1989-01-03 Karczmer Claude M Shield assembly for hypodermic injection devices
US4747831A (en) 1987-04-29 1988-05-31 Phase Medical, Inc. Cannula insertion set with safety retracting needle
US4725267A (en) 1987-05-06 1988-02-16 Vaillancourt Vincent L Post-injection needle sheath
US4944725A (en) 1987-06-01 1990-07-31 Mcdonald Michael Safety needle apparatus
US4735618A (en) 1987-07-20 1988-04-05 Henry E. Szachowicz, Jr. Protective enclosure for hypodermic syringe
US4846809A (en) 1988-02-29 1989-07-11 Winifred Sims Needle tip protective device
US4952207A (en) 1988-07-11 1990-08-28 Critikon, Inc. I.V. catheter with self-locating needle guard
US4929241A (en) 1988-08-05 1990-05-29 Kulli John C Medical needle puncture guard
US4978344A (en) 1988-08-11 1990-12-18 Dombrowski Mitchell P Needle and catheter assembly
US4964854A (en) 1989-01-23 1990-10-23 Luther Medical Products, Inc. Intravascular catheter assembly incorporating needle tip shielding cap
US5662610A (en) * 1989-02-01 1997-09-02 Sircom; Richard C. Automatic needle guard tip protection
ES2081973T3 (es) 1989-02-01 1996-03-16 Sero Guard Corp Protector automatico de aguja hipodermica desechable.
NZ233609A (en) 1989-05-17 1992-10-28 Critikon Inc Over-the-needle catheter assembly; restriction in catheter tube to limit liquid backflow
US5135504A (en) 1989-07-17 1992-08-04 Mclees Donald J Needle tip guard
US5147327A (en) 1990-01-10 1992-09-15 Johnson Gerald W Hypodermic needle with protective sheath
US5049136A (en) 1990-01-10 1991-09-17 Johnson Gerald W Hypodermic needle with protective sheath
US5053017A (en) 1990-02-28 1991-10-01 Chamuel Steven R Hypodermic needle safety clip
US5051109A (en) * 1990-07-16 1991-09-24 Simon Alexander Z Protector for catheter needle
US5279591A (en) 1990-07-16 1994-01-18 Simon Alexander Z Protector for needle catheter
US5183468A (en) 1991-04-02 1993-02-02 Mclees Donald J Snap ring needle guard
SE9101102D0 (sv) * 1991-04-11 1991-04-11 Viggo Spectramed Ab Needle protection device
US5171229A (en) 1991-04-15 1992-12-15 Mcneil Michael B Needle tip cover
GB9120416D0 (en) * 1991-09-25 1991-11-06 Sterimatic Holdings Ltd Catheter placement units
US5215528C1 (en) * 1992-02-07 2001-09-11 Becton Dickinson Co Catheter introducer assembly including needle tip shield
US5425720A (en) 1993-01-27 1995-06-20 Rogalsky; Alena Medical needle unit
US5370623A (en) 1993-03-01 1994-12-06 Kreamer; Jeffry W. Catheter with protective cover and method of catheterization
US5300045A (en) * 1993-04-14 1994-04-05 Plassche Jr Walter M Interventional needle having an automatically capping stylet
US5584809A (en) 1993-07-20 1996-12-17 Graphic Controls Corporation Safety catheter
US5697907A (en) * 1993-07-20 1997-12-16 Graphic Controls Corporation Safety catheter
US5344408A (en) 1993-08-06 1994-09-06 Becton, Dickinson And Company Break-away safety shield for needle cannula
US5419766A (en) * 1993-09-28 1995-05-30 Critikon, Inc. Catheter with stick protection
US5573510A (en) 1994-02-28 1996-11-12 Isaacson; Dennis R. Safety intravenous catheter assembly with automatically retractable needle
GB2292525B (en) * 1994-08-24 1998-07-01 Sterimatic Holdings Ltd Catheter placement units
US5423766A (en) 1994-08-26 1995-06-13 Becton, Dickinson And Company Safety shield having spring tether
US5501675A (en) 1994-12-27 1996-03-26 Becton, Dickinson And Company Safety catheter assembly having safety stop push button
US5685860A (en) 1995-06-07 1997-11-11 Johnson & Johnson Medical, Inc. Self-capping needle assembly
US5853393A (en) * 1995-06-07 1998-12-29 Johnson & Johnson Medical, Inc. Catheter needle locking and catheter hub unlocking mechanism
US5683365A (en) 1995-06-07 1997-11-04 Johnson & Johnson Medical, Inc. Tip protection device
US5584810A (en) 1995-07-11 1996-12-17 Becton Dickinson And Company Needle point guard assembly
ATE481124T1 (de) * 1996-02-27 2010-10-15 Braun Melsungen Ag Nadelspitzenschutz für subkutaninjektionen
US5879337A (en) 1997-02-27 1999-03-09 Injectimed, Inc. Needle tip guard for hypodermic needles
US6616630B1 (en) * 1997-08-20 2003-09-09 B. Braun Melsungen A.G. Spring clip safety IV catheter
US6379333B1 (en) * 1998-04-09 2002-04-30 Becton, Dickinson And Company Catheter and introducer needle assembly with needle shield
US6749588B1 (en) * 1998-04-09 2004-06-15 Becton Dickinson And Company Catheter and introducer needle assembly with needle shield
US6221047B1 (en) * 1998-07-31 2001-04-24 Albany Medical College Safety intravenous catheter assembly and method for use with a needle
US6689102B2 (en) * 1998-07-31 2004-02-10 Albany Medical College Safety intravenous catheter assembly
US6224569B1 (en) * 1999-09-24 2001-05-01 Becton, Dickinson And Company Compact needle point shield
US6322537B1 (en) 1999-12-30 2001-11-27 Ethicon, Inc. Safety intravenous catheter
US6210373B1 (en) * 1999-12-30 2001-04-03 Ethicon, Inc. Needle safety cover
US6585704B2 (en) * 2001-01-29 2003-07-01 B. Braun Medical, Inc. Method of retaining a tip protector on a needle with a curved tip
US6595955B2 (en) * 2001-03-15 2003-07-22 Specialized Health Products, Inc. Safety shield for medical needles
DE20106697U1 (de) * 2001-04-18 2001-10-31 Braun Melsungen Ag Kathetereinführvorrichtung
US6623458B2 (en) * 2001-09-26 2003-09-23 B. Braun Melsungen, Ag Spring launched needle safety clip
US6652486B2 (en) * 2001-09-27 2003-11-25 Medex, Inc. Safety catheter
US7226434B2 (en) * 2003-10-31 2007-06-05 Tyco Healthcare Group Lp Safety shield

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5601536A (en) * 1990-04-20 1997-02-11 Becton Dickinson And Company Needle tip cover
US6117108A (en) * 1997-08-20 2000-09-12 Braun Melsungen Ag Spring clip safety IV catheter
US6004294A (en) * 1998-04-09 1999-12-21 Becton, Dickinson And Company Catheter and introducer needle assembly with needle shield

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003092772A2 (en) * 2002-05-01 2003-11-13 Becton Dickinson And Company Method of making a feature on a cannula
WO2003092772A3 (en) * 2002-05-01 2004-03-04 Becton Dickinson Co Method of making a feature on a cannula
US6914212B2 (en) 2002-05-01 2005-07-05 Becton Dickinson And Company Method of making a needle and a needle
US7002098B2 (en) 2002-05-01 2006-02-21 Becton, Dickinson And Company Method of making a needle and a needle
EP1803477A2 (de) * 2004-02-13 2007-07-04 Smiths Medical ASD, Inc. Katheter mit Nadelschutz
EP1803477A3 (de) * 2004-02-13 2007-07-18 Smiths Medical ASD, Inc. Katheter mit Nadelschutz
US7347838B2 (en) 2004-02-13 2008-03-25 Smiths Medical Asd, Inc. Needle tip protector
US7534227B2 (en) 2004-02-13 2009-05-19 Smiths Medical Asd, Inc. Needle tip protector
WO2012038900A1 (en) 2010-09-21 2012-03-29 Poly Medicure Limited Catheter assembly with improved safety means
US20130184645A1 (en) * 2010-09-21 2013-07-18 Rishi Baid Catheter assembly with improved safety means
EP2618885B1 (de) * 2010-09-21 2019-11-27 Poly Medicure Limited Katheterbaugruppe mit verbesserter sicherheitsfunktion
US9345862B2 (en) 2011-07-26 2016-05-24 Poly Medicure Limited Needle tip protector assembly for safety IV catheter assembly

Also Published As

Publication number Publication date
DE20106697U1 (de) 2001-10-31
US20020169418A1 (en) 2002-11-14
MXPA02003777A (es) 2003-08-20
US7500965B2 (en) 2009-03-10
JP4237973B2 (ja) 2009-03-11
US20060270980A1 (en) 2006-11-30
US7731687B2 (en) 2010-06-08
US20080147003A1 (en) 2008-06-19
JP2002325847A (ja) 2002-11-12
EP1250943B1 (de) 2004-09-22
ATE276785T1 (de) 2004-10-15
ES2227347T3 (es) 2005-04-01
US7374554B2 (en) 2008-05-20
DE60201290D1 (de) 2004-10-28
DE60201290T2 (de) 2005-11-24

Similar Documents

Publication Publication Date Title
US7374554B2 (en) Safety spring catheter introducer assembly
US7753887B2 (en) Retractable needle medical device
US7060055B2 (en) Forward shielding safety device
US4982842A (en) Safety needle container
EP0392765B1 (de) Katheter mit Nadelschutzhülse
EP2316512B9 (de) Federklemme als Schutz der Nadelspitze für einen Sicherheits-IV-Katheter
US8048031B2 (en) IV catheter introducer
EP1181072B1 (de) Katheter und punktionsnadel mit nadelschutz
EP1100562B1 (de) Medizinische vorrichtung mit einziehbarer nadel
US20040267204A1 (en) On-demand needle retaining and locking mechanism for use in intravenous catheter assemblies
US20150238733A1 (en) Catheter devices and related methods
US20030105431A1 (en) Catheter and introducer needle assembly with compact needle shield
JP2003520109A (ja) コンパクト針シールド装置
EP2211942A2 (de) Spitzenschutz zur verhinderung von nadelstichen
EP1378263A2 (de) Medizinische Vorrichtung mit einziehbarer Nadel
EP1292355B1 (de) Katheter und einführnadel-anordnung mit nadelschutz
JP2020509842A (ja) カニューレ安全機構付き静脈内カテーテルアセンブリ
EP0603325B1 (de) Punktionsnadeleinrichtung, insbesondere für eine geschlossenes system zum einführen eines katheters in ein blutgefäss
CA2047333C (en) Catheter with needle guard
EP0578367A1 (de) Katheter mit Nadelschutzeinrichtung und verlängerter Rückstaukammer
US20020072711A1 (en) Needle shield using external blunt shield member
US20170224962A1 (en) Safety Guidewire Introducer Assembly
US20230226323A1 (en) Intravenous cannula
WO2003090602A2 (en) Apparatus for shielding a needle

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20030423

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20030723

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040922

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 60201290

Country of ref document: DE

Date of ref document: 20041028

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041222

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041222

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2227347

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050417

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20050417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050430

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20050623

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050222

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20190418

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190419

Year of fee payment: 18

Ref country code: IE

Payment date: 20190424

Year of fee payment: 18

Ref country code: DE

Payment date: 20190418

Year of fee payment: 18

Ref country code: ES

Payment date: 20190520

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20190425

Year of fee payment: 18

Ref country code: TR

Payment date: 20190408

Year of fee payment: 18

Ref country code: FR

Payment date: 20190423

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190424

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60201290

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20200501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201103

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200418

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200430

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20200417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200417

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200417

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20210902

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200418

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20200417